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Archivos de Zootecnia

versión impresa ISSN 0004-0592

Resumen

SILVA, A.M. et al. Diurnal intake behavior of Girolanda cows at different stocking rates. Arch. zootec. [online]. 2011, vol.60, n.232, pp.859-870. ISSN 0004-0592.  http://dx.doi.org/10.4321/S0004-05922011000400003.

The behavior of cows at different stocking rates (2, 4 and 6 UA), in rotational grazing was studied. The experimental design was randomized blocks in an split plot arrangement with repeated measures and three repetitions. Observations of feeding behavior of the animals were held every 10 minutes during the daytime. Grazing, rumination, and other activities of the animals were affected by period of grazing, days of grazing and stocking rate. There were negative correlations between grazing time of animals and the variables: rumination time, leisure, other activities, temperature and humidity index (ITU) and black globe-humidity index (ITGU). During periods when rainfall occurred the animals showed similar behavior of grazing (grazing time average of 434 minutes), which allowed the use of both stocking rates, without much damage to the behavior of the animals in the rainy season.

Palabras clave : Leisure; Grazing; Ruminating; Temperatures.

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